Alert archive / Texas / Flash Flood Warnings in 2002

Flash Flood Warning 8, NWS Brownsville, TX

July 15, 2002Jim Hogg County, Texas

NWS Brownsville, TX issued this flash flood warning at Jul 15, 2002, 3:30 PM CDT for Jim Hogg County, Texas. It was in force for 2 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jul 15, 2002, 3:30 PM CDT (20:30 UTC)
Expired
Jul 15, 2002, 5:30 PM CDT
In force
2 hr
Issued by
NWS Brownsville, TX
Area
Counties, with a storm outline in the text

County Jim Hogg County, TX

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 8.5 hours before the alert went out and 162 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Corpus Christi, TX at 12:00Z on 2002-07-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1885 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Corpus Christi, TX at 12:00Z on 2002-07-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 134 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
1885 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
623 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
134 m²/s²
0-3 km storm-relative helicity
389 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS54 KBRO 152030
FFWBRO
TXC247-152230-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
330 PM CDT MON JUL 15 2002

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  JIM HOGG COUNTY IN DEEP SOUTH TEXAS

* UNTIL 530 PM CDT

* AT 330 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS WITH VERY HEAVY RAINFALL 9 MILES SOUTHEAST OF 
HEBBRONVILLE...MOVING NORTH AT 15 MPH. DOPPLER RADAR ESTIMATED 
HOURLY RAINFALL RATES OF 3 TO 4 INCHES.

* SLOW MOVING THUNDERSTORMS ARE PRODUCING TORRENTIAL RAINFALL IN THE
  WARNED AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH
  FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLASH   
FLOODING INCLUDE....HEBBRONVILLE.

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL 
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT ATTEMPT TO CROSS
SWIFTLY FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY
AUTOMOBILE. IF YOUR VEHICLE STALLS, ABANDON IT IMMEDIATELY AND SEEK
HIGHER GROUND.


LAT...LON 2682 9896 2683 9847 2726 9853 2740 9894
1 follow-up statement
000 
WGUS74 KBRO 152130 CCA
FFSBRO
TXC247-152230-

FLASH FLOOD STATEMENT...CORRECTION
NATIONAL WEATHER SERVICE BROWNSVILLE TX
430 PM CDT MON JUL 15 2002

...A FLASH FLOOD WARNING CONTINUES FOR JIM HOGG COUNTY UNTIL 530 
PM...

AT 425 PM...DOPPLER RADAR CONTINUED TO INDICATE THUNDERSTORMS WITH 
HEAVY RAIN OVER MUCH OF JIM HOGG COUNTY.

RADAR INDICATES THAT 3-4 INCHES OF RAIN HAS ALREADY FALLEN OVER 
NORTHERN JIM HOGG COUNTY...JUST SOUTH OF HEBBRONVILLE. PEOPLE 
TRAVELING SOUTH OF HEBBRONVILLE IN NORTHERN JIM HOGG COUNTY SHOULD 
WATCH FOR FLOODED AREAS.

TO REPORT SEVERE WEATHER HAVE THE NEAREST LAW ENFORCEMENT AGENCY
RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE.

LAT...LON 2683 9895 2683 9848 2739 9852 2734 9892

MM

The office that day

Everything else NWS Brownsville, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 15, 6:13 PM CDTFlash Flood WarningBROStarr3 hr

Nearby

Flash Flood Warnings in Texas, 2002Every flash flood warning in 2002

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.